I had to format my C:drive several days ago, actually, I didn’t want to do this. My dell pc have been affected due to the virus, and after formatted the disk, my important word files have gone too. I never aware that the lost files can be recovered by a data recovery software until a friend of mine said it to me. I googled with “data recovery”, so many softwares were found: EASEUS Data Recovery Wizard, easy recovery , active, undeleted. I don’t know which is the best one to buy, I don’t have too much money. Somebody recommend EASEUS, I have gone to his website, maybe it is a cost-effective one. Is there any more suggestion before I purchase EASEUS’s.

go to google and type gdbnt.zip, that a good one hey, will recover anything

Don't use your disk. Every new file may be overwriting a file you want to recover.
This one is free, and works well:
http://www.snapfiles.com/download/dlrestoration.html